Conveyer.



AXEL WALDMAR LIND, OF STR'MSTAD, SWEDEN.

CONVEYER. y

, Specification of Letters Patent.

Patented Dec. 1, 1908.

Application ledtl'une 17, 1908. Serial No. 439,014.

Strmstad, Sweden, have invented `new and useful Improvements in Conveyers,

of which the following is a specicationt My invention relates'to conveyers or cable-4 tracks by whichbuckets or carriers are transported along a suspended endless wire orA cable,which is bent around vand driven through wheels with vertical shafts.

The object of my invention is to produce a construction for conveyers ,of this type, whichv can be `carried `around horizontal curves even on that sideof the track,where the overhanging arms of the Vcarriers are eX- tending outwards, without said arms interfering with the rim of the guide-pulleys. The characteristic ofthe invention therefore is that the rim of the guide-pulleys on the overhanging side is radiallyl divided into a number of hinged doors, which include the rope-groove', arid which aredropped in the same moments, as the overhanging-arm'of a carrier passes, rendering said'arm'a free passa Q gReferring to the accompanyingdrawing Figure 1 is a plan view of'myv improved conveyer. Fig. 2 isa `s ide elevation`Y of a part of same. Fig; 3 shows aV similar side view with a part of the guide-pulley 1n section through the line A-B of Figf4. Fig. 4 shows a plan view of my `improved appa ratus, partly in section. Figf 1s aside view of the guide-pulley perpendiculartto the line A-C of 4, and Fig. `6 a section of same through the line A-C.VV v Fig.j7 finally shows a frontview'of vmy improved guide-pulley in a different working-posit1on. Figs; 2 to 7 are on alarger scale than Figi 1. e n endless rope, wire or chain 1 is run in so many horizontal curves or bends as necessary and is suspended over the groundon horizontal and vertical guide-pulleys 2, 3, 4, 5,16 and 7. Thecarriers 8 are'at suitable intervals attached to the rope or wire 1 by an overhangingarm 9, which is connected to the rope or wire 1 through'a socket 10, of a diameter only alittle larger than the rope or wire in `order to suitthe groovesjof the guide-pulleys 2, 3,Y 5 and 6. The pulleysl 2 and 5 at the end pointsof the conveyerserve as driving-wheels.,k At such points, Awhere the track must be curved to that side, where the armsV 9 are hanging over, the rims of the guide-pulleys 4 and 7 are radially dil vided :into doors 11,'V attached to the underside of the pulleys through hinges 12 so that they can be ldropped down in vertical position, These doors include in their outer edgestheropeegrooves.' They are each on their upper side Yprovided with a hook 13, which, the doors beingyin'horizontal position, grasps into a corresponding hook on 'a hingedjplate"14,` placed one over each door 11, on the upper side of the pulley, which plates 14 are reaching a little outside the edgesof the doors 11'. The swing axles of the plates 14 kare preferably `situated somewhat inside ,the edge of the solid part of the pulleyto prevent the plates V14 from falling down undera horizontalposition, when the corresponding door 11 is dropped.

At the side lof each pulley 4 and 7 is a device for theV dropping of the doorsll, consisting of an inclined plate 16, turnably mounted on a vertical shaft 15. Said plate is ofsuch a length, thatv it reaches under the edge ofthe `plates 14 without touching the doors 11.` The plate can ralso bersomewhat ivoted in vertical direction onhorizontal Journals 17, arranged on the shaft 15, and itis provided withan arm 18, which projects on the opposite sideof the shaft. On the rear side'of `the' shaft 15 in relation to the pulley Vthere isa curved rail 19 with its one.

end 20 bent somewhat upwards. The purpose of said'rail is to lift* the plate 16 over the plates 14, when turning in the one direction, so that the plate 16 does not interfere with the latter during this motion. The arm 18, when-turned' to its outerposition at the end 20, becomes caught by this upward turned end ofthe rail 19 and pushed downwards under the rail, when turning back to the rear end of same one, thus keeping the Vedge of the plate 16 so high, that it comes out of'jcontact with' the plates 14. Having passed along the underside of the rail 19, the arm 18 becomes free, and then the plate 16' by its gravity falls down so `far that, if nowV turned back to the former position by the' arm V18 above the rail, its lower, leading edge comes in under the edge of one of the plates 14 and raises same one a little through the inclined position of the plate 16.

l"The arm 18 is either moved automatically by the carriers through an' arm 22 extending from a rope-pulley 21, pivotally arranged on thel side of the track. Said arm vbecomes touched by the overhanging arm 9 of the carriers and swungout of the way making a free passage for the arm 9. This move` ment of the arm 22 and the pulley 21 is transmitted to the shaft 15 by a rope 23, fixed tothe pulley 21 and run over a second rope-pulley 24 on the shaft 15. A spring 24 at the end of the rope 23 tends to swing the pulley 24 and the arm 22 back into their original position since the carrier has passed away.

The position of the arm 22 and plate 16 is'chosen so that the linear distance between that point, where the conveying-wire 1 touches the rim of the guide-pulley and that point, where the carriers arm 9 touches the arm 22 equals the part of the guide-pulleys periphery between that point, where tire plate 16 touches one of the plates 14 and that point, where the wire, ask before said, touches the rim of the guide-pulley, in order to enable the overhanging arm 9 to engage with that recess in the rim of the guide-pulley, which is formed through the dropping down of one or a couple of the doors 11.

The guide-pulley having been turned in such a degree to permit the overhanging arm of the carrier to pass, the dropped doors are swung up again in their original position by a guide-iron 25, placed under the pulley and which guide-iron at the rear end is bent upwards to an inclined plane, on which the hanging doors are sliding. The highest point of that guide-iron does not reach close vup to the pulley or the doors in order to prevent any useless wear of theseparts at the revolving of the pulley. A bell-crank-lever 26 raises finally the doors sufliciently high to enable their hooks 13 to seize the hooks on the corresponding plates 14. The one arm of said lever is horizontal and placed close into the highest point of the guide-iron 25 at the same height as this one, and the other arm vertically and pivotallypconnected to a horizontal pivotally arranged lever 27, which reaches near to the rope or wire 1, so thatit becomes moved by the overhanging arm 9 of a carrier when passing. A spring 27 tends to pull the lever 27 back to its original position, -since the carrier has passed away. Vertical guides are suitably placed on each side of the guide-pulleys 4 and 7 to support the rope or wire 1 and to prevent the doors from being clapped down by the mere gravity of the rope or wire.

My improved conveyer works in the following way. The wire or rope 1 isvdriven in the direction of the arrows in Fig. 1. `When a carrier arrives to the arm 22, this arm is moved away by the overhanging arm 9, which movement is transmitted through the rope 23 to the inclined plate 16, turning same towards the rim of the corresponding guide-pulley, so that one of the plates 14 becomes raised a little and drops the corresponding door 11. In passing the guidepulley the overhanging arm 9 now enters into the recess produced by the dropped door (Fig. During the continued revolving of the pulley 4 resp. 7 the dropped doors are sliding along the guide-iron 25 and finally raised into nearly horizontal position through the inclined end of said guide-iron. Passing the end of the lever 27 the carrier moves it a little to the side, the bell-cranklever is actuated and its horizontal arin finally lifts the door, until the hook 13 of same one seizes the hook of the plate 14.

Having thus described my invention, what I claim as new and desire to secure, by Letters-Patent, is-

1. In a ropeor wire-conveyer guide-pulleys with vertical shafts, the rims of which are radially cut into hinged doors, which in their outer edges include the rope-grooves of the pulleys, and means for dropping down one or more of said doors into a vertical poe sition in order to make a free passage for the overhanging-arms of the carriers.

2. In a ropeor wire conveyer the combination of guide-pulleys with rims cut radially into hinged doors, hooks on the upper side of said doors, hinged plates with corresponding hooks arranged above said doors, an inclined swinging plate, which can be moved so that it raises said hinged plates, means for swinging said inclined plate., means for lifting up the dropped doors, after the carriers have passed.

3. In a ropeor wire conveyer guide-pulleys with rims radially cut into hinged doors, hooks on said doors, hinged plates with hooks, which keep the doors in a. horizontal position, a swinginginclined plate to raise said hinged plates in order to release said doors, said inclined plate fixed on a pivotally arranged shaft, a rope-pulle.7 on said shaft, a second rope-pulley on the side of the ropeor wire track, an arm on said second pulley, which reaches to the ropeor wire track, a rope fixed to the second pulley and run around the pulley on the pivotally arranged shaft, a spring at the end of said rope.

4. In a ropeor wire conveyor guide-pulleys with rims radially cut into hinged doors, hinged plates with hooks to keep said doors, an inclined swinging plate to lifty said hinged plates, horizontal journals fixed to the vertical shaft for the inclined plate, through which journals the inclined plate can be pivoted a little in a vertical direction an arm on the rear end of the inclined plate a curved rail, on which said arm is sliding, when moving in the one direction and then permitting the inclined plate to engage with the hinged plates on their underside in order to raise them, an upwards turned end of said rail, under which end the arm will take its way, when turned back to its former position, thus lifting the inclined plate so, that same one does not interfere with the hinged plates. V

5. In a ropeor wire-conveyer guide-pnl leys with rims radially cut into hinged doors, hinged plates with hooks to keep said doors in a horizontal position, means for dropping said doors, a guide-iron arranged under the guide-pulley, on which guide-iron the dropped doors are sliding, when the pulley revolves, an upwards inclined end of said guide-iron in order to gradually lift the dropped doors up again to their horizontalV position, a bell-cranklever at the top of the inclined end of said guide-iron which bellcrank lever inally lifts the doors until their hooks are seized by the hook in the hinged plates, a horizontal lever pivotally attached to said bell-crank-lever, which horizontal lever at the rear end reaches close to the ropeor wire track, so that it may be moved a little by a passing carrier.

In testimony whereof .I have hereunto set my hand in presence of two subscribing witnesses.

AXEL VALDEMAR LIND. 

